There are 910 people,
of which 370 are men.
There are 480 less adults than women.
- How many children are there?
- How many adults are there?
- How many less children than adults are there?
- How many more women than men are there?
(a)
Number of men = 370
Number of children = 1 u
Number of women = 1 u + 480
Total number of people
= 370 + 1 u + 1 u + 480
= 1 u + 1 u + 370 + 480
= 2 u + 850
2 u + 850 = 910
2 u = 910 - 850
2 u = 60
1 u = 60 ÷ 2 = 30
Number of children
= 1 u
= 30
(b)
Number of adults
= 370 + 1 u + 480
= 370 + 30 + 480
= 880
(c)
Number of less children than adults
= 880 - 30
= 850
(d)
Number of more women than men
= 1 u + 480 - 370
= 30 + 480 - 370
= 140
Answer(s): (a) 30; (b) 880; (c) 850; (d) 140